Congrats! There is a book called When You're Expecting Twins/Triplets/Multiples that is excellent . Things are very different as far as diet and supplements. Especially if they are identical I highly recommend being under the care of a perinatalogist or other specialist. Twin pregnancy is amazing, and I'm so happy for. But do be aware of the differences and potential increased risks. Totally not trying to scare you! Just wanted to share some info.